I didn't see this on the errata page, but my friend and I have 2 different versions of staff of ra.
the original set says increase max HP by 5...the ee version says "gain 3 life".
it might be worth including on the errata page
UPDATE: I'm stupid and just learned that the cards in the EE are different. Back to my hole.
Actually if you go to http://sentinelsofthemultiverse.com/downloads and to a gander at all the Enhanced Edition changes there, it will give you a list of all the errata the occured between the original and the Enhanced Edition. Trust me there is a lot so it might be worth printing it off if you don't want to upgrade to the the EE. As a lot of cards really don't work like they used to. Infact all references to increase max HP are removed and turned to HP recovery instead.